Sarvajñasiddhi by Jñānaśrīmitra
The work is lost, but Ratnakīrti used it when he composed his own treatise of the same name (the Sarvajñasiddhi). Cf. Introduction to Jñānaśrīmitranibandhāvali (Thakur 1987, p. 11).
Steinkellner, Ernst. 1977. Jñānaśrīmitra’s Sarvajñasiddhiḥ. Edited by Lewis Lancaster. Berkeley Buddhist Studies Series 1. Berkeley.